CN219087648U

CN219087648U - Air duct radiator

Info

Publication number: CN219087648U
Application number: CN202223149598.XU
Authority: CN
Inventors: 唐志林; 郑家治
Original assignee: Shenzhen Hongfucheng New Material Co ltd
Current assignee: Shenzhen Hongfucheng New Material Co ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-05-26
Anticipated expiration: 2032-11-25

Abstract

The utility model relates to an air duct radiator, which comprises a box body and a plurality of radiating fins, wherein the periphery of the box body is closed, the two ends of the box body are open, the radiating fins are arranged in the box body, the two ends of each radiating fin are connected with the inner wall of the box body through brazing, and a radiating air duct is formed between the adjacent radiating fins. The heating elements can be arranged on the side walls of the box body of the air duct radiator, the layout can be more dispersed, the radiating effect can be improved, and the inherent mode that the heating elements can be arranged on one side of the heat conducting plate of the conventional radiator is broken through; the two ends of the radiating fins are connected with the inner wall of the box body through brazing, so that the thermal resistance of the connecting part can be reduced, and the heat absorbed by the box body can be quickly conducted to the radiating fins; a heat dissipation air channel is formed between the heat dissipation fins, heat on the heat dissipation fins can be quickly taken away by air, ventilation openings at two ends of the box body can be directly communicated to the outside of the electronic product, and even if rainwater or moist air is contained in the air, the inside of the electronic product cannot be influenced.

Description

Air duct radiator

Technical Field

The utility model relates to the technical field of heat dissipation, in particular to an air duct radiator.

Background

With the development of electronic technology, on one hand, the intelligent degree of electronic products is higher and higher, the demand on calculation force is higher and the number of heating elements in the electronic products and the heating value of single heating element have a trend of increasing; on the other hand, the electronic products have a trend of integration, miniaturization, light weight, and portability, which puts higher demands on the heat dissipation system of the electronic products.

In view of this, various heat sinks have been developed, and a common heat sink generally includes a heat conducting plate and a heat dissipating fin, the front surface of the heat conducting plate is in contact with a heat generating element to transfer heat, the heat dissipating fin is disposed on the back surface of the heat conducting plate to play a main role in heat dissipation, if a plurality of heat generating elements are disposed in an electronic product, a plurality of heat sinks are required to be disposed, or a plurality of heat generating elements are crowded on the same heat sink, which reduces the heat dissipation effect.

Disclosure of Invention

The utility model provides an air duct radiator for solving the technical problem that the existing radiator is poor in radiating effect.

The technical scheme provided by the utility model is as follows: the utility model provides an air duct radiator, includes box body and a plurality of radiating fin, the box body is airtight all around, and both ends are open, and a plurality of radiating fin all set up inside the box body, and radiating fin's both ends all are connected with the inner wall of box body through brazing, form the heat dissipation wind channel between the adjacent radiating fin.

By adopting the technical scheme, the heating elements can be arranged on the side walls of the air duct radiator box body, when the number of the heating elements is multiple, the layout can be more dispersed without crowding together, the radiating effect can be improved, and the inherent mode that the conventional radiator can only arrange the heating elements on one side of the heat conducting plate is broken; the two ends of the radiating fins are connected with the inner wall of the box body through brazing, so that the thermal resistance of the connecting part can be reduced, and the heat absorbed by the box body can be quickly conducted to the radiating fins; because the box body both ends are open, can ventilate in the middle, form the heat dissipation wind channel between the radiating fin, between radiating fin and the box body inner wall, the air can take away the heat on the radiating fin fast, the vent at box body both ends can direct communication to the outside of electronic product, even contain rainwater or moist air in the air also can not influence inside the electronic product, be applicable to outdoor waterproof application scenario that requires highly, in addition, to the equipment of dynamic operation (like high-speed railway, aircraft etc.), it need not set up corresponding radiator fan, it subtracts heavy effect is comparatively obvious.

Preferably, the plurality of heat radiating fins are arranged in parallel with each other or are arranged in a splayed or herringbone shape. The cross section of the radiating fin is wavy or zigzag.

Through adopting above-mentioned technical scheme, can increase radiating fin's heat radiating area to a certain extent, perhaps increase radiating fin's arrangement density to promote the radiating effect.

Preferably, the plurality of radiating fins are formed by continuous stamping, and adjacent radiating fins are connected end to end.

By adopting the technical scheme, as the stamping type integrated radiating fins are adopted, the shape of the radiating fins can be diversified, the radiating fins are not influenced by the traditional aluminum extrusion and relieved tooth process, the forming thickness can be less than 0.05mm, and the weight reduction effect is quite obvious.

Preferably, adjacent radiating fins are connected through a plane connecting section, and the plane connecting section is connected with the inner wall of the box body through brazing.

By adopting the technical scheme, the contact area between the radiating fins and the box body is enlarged, so that better heat transfer is facilitated, and the welding problem is less likely to occur in the brazing process.

Preferably, the inner wall of the case is provided with a brazing sheet, and both ends of the heat radiating fin are connected to the inner wall of the case through the brazing sheet.

By adopting the technical scheme, the brazing sheet is completely melted into liquid metal (generally aluminum) in the brazing process, and the box body and the radiating fins are fused together to form a whole, so that the structure strength is good.

Preferably, the surface of the radiating fin is provided with a brazing material coating, and the radiating fin is connected with the inner wall of the box body through the brazing material coating.

By adopting the technical scheme, the brazing sheet can be not arranged any more, and in the brazing process, the brazing material coating can be melted to fuse the box body and the radiating fins together to form a whole.

Preferably, the box body comprises a cover plate and a base plate, wherein the base plate comprises a bottom plate and two side plates which are integrally formed, and the cover plate and the two side plates are connected through brazing.

Through adopting above-mentioned technical scheme, design the box body into split type, can be earlier put into the base plate with brazing sheet and radiating fin convenience, then cover the apron again, brazing sheet melts into liquid aluminium completely in the brazing process, fuses base plate, apron, radiating fin together, forms a whole, and structural strength is good, and equipment and shaping are easier.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the heating elements can be arranged on the side walls of the air duct radiator box body, the layout can be more dispersed, and the inherent mode that the heating elements can be arranged on one side of the heat conducting plate only by the conventional radiator is broken;

2. the two ends of the radiating fins are connected with the inner wall of the box body through brazing, so that the thermal resistance of the connecting part can be reduced, and the heat absorbed by the box body can be quickly conducted to the radiating fins;

3. a heat dissipation air channel is formed between the heat dissipation fins, air can rapidly take away heat on the heat dissipation fins, ventilation openings at two ends of the box body can be directly communicated to the outside of the electronic product, and even if rainwater or moist air is contained in the air, the inside of the electronic product is not affected, so that the waterproof effect is good;

4. because the stamping type integrated radiating fins are adopted, the shape of the radiating fins can be diversified, the radiating fins are not influenced by the traditional aluminum extrusion and relieved tooth process, the forming thickness can be less than 0.05mm, and the weight reduction effect is quite obvious.

Drawings

FIG. 1 is a perspective view of an air duct radiator according to an embodiment of the present disclosure;

FIG. 2 is a front view of an air duct radiator according to an embodiment of the present disclosure;

FIG. 3 is a side view of a high efficiency heat dissipating structure according to an embodiment of the present application;

fig. 4 is a front view of an air duct radiator according to a second embodiment of the present disclosure;

FIG. 5 is a front view of a third embodiment of an air duct radiator;

fig. 6 is a perspective view of an air duct radiator according to a fourth embodiment of the present application;

FIG. 7 is a front view of a radiator for an air duct according to a fourth embodiment of the present disclosure;

FIG. 8 is an exploded front view of a radiator for an air duct according to a fourth embodiment of the present disclosure;

FIG. 9 is an exploded perspective view of a radiator for an air duct according to a fourth embodiment of the present disclosure;

fig. 10 is a partial front view of a heat dissipating fin according to a fifth embodiment of the present application.

Reference numerals illustrate: 10. an air duct radiator; 11. a case body; 111. a cover plate; 112. a substrate; 113. a flange; 12. a heat radiation fin; 121. a planar connection section; 122. a braze coating; 13. a heat dissipation air duct; 14. a brazing sheet; 20. a case; 30. a heating element; 40. and a seal.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-10.

Embodiment one:

referring to fig. 1 and 2, the embodiment of the application discloses an air duct radiator 10, including box body 11 and a plurality of radiating fins 12, box body 11 is airtight all around, and both ends are open, and a plurality of radiating fins 12 all set up inside box body 11, and radiating fins 12's both ends all are connected with box body 11's inner wall through brazing, form radiating air duct 13 between the adjacent radiating fins 12. Specifically, the plurality of heat radiating fins 12 are arranged parallel to each other.

Referring to fig. 3, the embodiment of the application discloses a high-efficiency heat dissipation structure, which comprises a box 20, a heating element 30 and the air duct radiator 10, wherein the air duct radiator 10 penetrates through the box 20, the box 20 is in sealing connection with the outer wall of the air duct radiator 10, and the heating element 30 is located in the box 20 and is arranged on the outer wall of the air duct radiator 10. Specifically, the number of the heating elements 30 is plural, and the heating elements are respectively disposed on different outer walls of the air duct radiator 10. Flanges 113 are arranged on the outer walls of the two ends of the box body 11, sealing elements 40 are arranged on the inner sides of the flanges 113, the air duct radiator 10 and the box body 20 are sealed through the sealing elements 40, the two ends of the air duct radiator 10 can be tightly attached to the sealing elements 40 through screw locking, internal and external isolation is achieved, and sealing and waterproofing are achieved.

The heat dissipation principle of the air duct heat radiator 10 is as follows: the heat on the heating element 30 is transferred to the box body 11 and then transferred to the radiating fins 12 by the box body 11, the wind blows on the radiating fins 12 through the radiating air duct 13, and the heat on the radiating fins 12 is taken away through heat exchange between the wind and the radiating fins 12, so that the radiating purpose is realized.

The heating elements 30 can be arranged on the side walls of the box body 11 of the air duct radiator 10, when the number of the heating elements 30 is multiple, the layout can be more dispersed, the crowding is not needed, the radiating effect can be improved, and the natural mode that the conventional radiator can only arrange the heating elements 30 on one side of the heat conducting plate is broken; both ends of the radiating fins 12 are connected with the inner wall of the box body 11 through brazing, so that the thermal resistance of the connecting part can be reduced, and the heat absorbed by the box body 11 can be quickly conducted to the radiating fins 12; because the box body 11 both ends are open, the centre can ventilate, form the heat dissipation wind channel 13 between the heat dissipation fin 12, between heat dissipation fin 12 and the box body 11 inner wall, the air can take away the heat on the heat dissipation fin 12 fast, the vent at box body 11 both ends can direct communication to the outside of electronic product, even contain rainwater or moist air in the air also can not influence inside the electronic product, be applicable to outdoor waterproof application scenario that requires highly, in addition, to the equipment of dynamic operation (like high-speed railway, aircraft etc.), it does not need to set up corresponding radiator fan, the effect of subtracting heavy is comparatively obvious.

As shown in fig. 1, the heat dissipation fins 12 are connected with the upper and lower side walls of the box 11, so that heat conduction is faster, the heat dissipation performance of the upper and lower ends of the air duct radiator 10 is better, the heating element 30 is preferentially arranged on the two side surfaces, and the heat dissipation capacity of the two side surfaces is completely consistent; the other two sides have slightly poorer heat dissipation properties, which is less preferred.

The application of the air duct radiator 10 and the high-efficiency radiating structure is wide in application scene, such as a 5G base station, a server, medical equipment, new energy, rail transit, a large-scale aircraft and the like.

Embodiment two:

referring to fig. 4, the difference between the present embodiment and the first embodiment is only that the cross-sectional shape of the heat dissipation fins 12 is different, and the heat dissipation area of the wavy heat dissipation fins 12 is larger and the heat dissipation effect is enhanced in the same number of heat dissipation fins. The cross-sectional shape of the heat radiating fin 12 may be other shapes such as zigzag and the like, and substantially the same effect can be achieved.

Embodiment III:

referring to fig. 5, the difference between the present embodiment and the first embodiment is only that the layout of the plurality of heat dissipating fins 12 is different, and the heat dissipating fins 12 of the present embodiment are arranged in a herringbone manner, and the heat dissipating fins 12 may be arranged more densely. The plurality of heat radiating fins 12 may be arranged in other manners, such as being splayed, etc., to achieve substantially the same effect.

Embodiment four:

in the prior art, the main manufacturing method of the radiating fin adopts an aluminum extrusion process, or a relieved tooth process, or the radiating fin is punched first and then fixed on the heat conducting plate through a soldering process. The common characteristics of the aluminum extrusion process and the relieved tooth process are that the radiating fins are very thin and the space is very small, so that the whole weight is large and the radiating area is small; the soldering process has the defects that the contact thermal resistance is influenced by solder paste, the thermal resistance is larger, the surfaces of the radiating fins and the heat conducting plate also need to be electroplated, the electroplating cost is high, and the environmental pollution is larger.

Referring to fig. 6 to 9, the present embodiment is different from the first embodiment in that the plurality of heat radiating fins 12 are formed by continuous stamping, and adjacent heat radiating fins 12 are connected end to end. Because the stamping type integrated radiating fin 12 is adopted, the shape of the radiating fin 12 can be diversified, the radiating fin can be designed according to actual needs, the structural variability is strong, the radiating fin can be in the shape of wave, staggered teeth and the like, is not influenced by the traditional aluminum extrusion and relieved tooth processes, the forming thickness can be less than 0.05mm (for example, the thickness of 0.1, 0.15, 0.2, 0.3mm and the like), the weight reduction effect is quite obvious, and the radiating fin meets the weight reduction requirement of sports equipment.

In this embodiment, adjacent heat radiating fins 12 are connected by a planar connection section 121, and the planar connection section 121 is connected to the inner wall of the case 11 by brazing. The contact area between the heat radiating fins 12 and the case 11 becomes larger, which is conducive to better heat transfer, and in the brazing process, the welding problem is less likely to occur, or even if a slight welding problem occurs, the contact area is large enough to cover the problem of heat transfer efficiency reduction caused by poor welding.

In this embodiment, the case 11 includes a cover plate 111 and a base plate 112, the base plate 112 includes a bottom plate and two side plates that are integrally formed, and the cover plate 111 and the two side plates are connected by brazing. The inner wall of the box 11 is provided with a brazing sheet 14, and both ends of the fin 12 are connected to the inner wall of the box 11 through the brazing sheet 14. The box body 11 is designed to be split, the brazing sheet 14 and the radiating fins 12 can be conveniently placed into the base plate 112, then the cover plate 111 is covered, the brazing sheet 14 is completely melted into liquid aluminum in the brazing process, the base plate 112, the cover plate 111 and the radiating fins 12 are fused together to form a whole, the structural strength is good, and the assembly and the forming are easier.

In the present utility model, the material of the case 11 and the fin 12 is preferably an aluminum material or an aluminum alloy material, and the brazing sheet 14 and the brazing filler metal coating 122 are preferably aluminum materials or aluminum composite brazing filler metals. The aluminum brazing process can greatly reduce the thermal resistance of the connecting part, the heat conductivity coefficients of the brazing material, the radiating fins 12 and the base material of the box body 11 are nearly identical, and compared with the traditional welding processes such as heat conduction gluing and soldering in the prior art, the thermal resistance value is reduced by times.

Fifth embodiment:

referring to fig. 10, the difference between the present embodiment and the fourth embodiment is that the surface of the heat dissipating fin 12 is provided with a brazing material coating 122, and the heat dissipating fin 12 is connected to the inner wall of the case 11 through the brazing material coating 122. The present embodiment eliminates the need for the brazing sheet 14.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides an air duct radiator, its characterized in that includes box body and a plurality of radiating fin, the box body is airtight all around, and both ends are open, and a plurality of radiating fin all set up inside the box body, and radiating fin's both ends all are connected with the inner wall of box body through brazing, form the heat dissipation wind channel between the adjacent radiating fin.

2. The air duct radiator of claim 1, wherein the plurality of radiating fins are arranged in parallel with each other or in a splayed or herringbone arrangement.

3. The air duct radiator of claim 1, wherein the radiating fins have a wavy or zigzag cross-sectional shape.

4. The air duct radiator of claim 1, wherein the plurality of heat radiating fins are formed by continuous stamping, and adjacent heat radiating fins are connected end to end.

5. The air duct radiator of claim 4, wherein adjacent radiating fins are connected by planar connection sections, and the planar connection sections are connected to the inner wall of the case by brazing.

6. The air duct radiator of claim 1, wherein the case body inner wall is provided with brazing sheets by which both ends of the heat radiating fins are connected to the case body inner wall.

7. The air duct radiator of claim 1, wherein the surface of the radiating fin is provided with a brazing material coating, and the radiating fin is connected with the inner wall of the box body through the brazing material coating.

8. The air duct radiator of claim 1, wherein the case includes a cover plate and a base plate, the base plate including an integrally formed bottom plate and two side plates, the cover plate and the two side plates being connected by brazing.